package 反射;

import java.lang.reflect.AnnotatedType;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;

public class Test09 {
    public   void   test01(Map<String,User> map, List<User> list){
        System.out.println("test01");
    }
    public   Map<String,User>  test02(){
        System.out.println("test02");
        return  null;
    }


    public static void main(String[] args) throws NoSuchMethodException {
        Method method = Test09.class.getMethod("test01", Map.class, List.class);
        Type[] genericParameterTypes = method.getGenericParameterTypes();
        for (Type genericParameterType : genericParameterTypes) {
            System.out.println("#"+genericParameterType);
            if (genericParameterType instanceof ParameterizedType){
                Type[] actualTypeArguments = ((ParameterizedType) genericParameterType).getActualTypeArguments();
                for (Type actualTypeArgument : actualTypeArguments) {
                    System.out.println(actualTypeArgument);
                }
            }
        }
        Method method1 = Test09.class.getMethod("test02", null);
        Type genericReturnType = method1.getGenericReturnType();
        if (genericReturnType  instanceof   ParameterizedType){
            Type[] actualTypeArguments = ((ParameterizedType) genericReturnType).getActualTypeArguments();
            for (Type actualTypeArgument : actualTypeArguments) {
                System.out.println(actualTypeArgument);
            }
        }

    }
}
